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3 years ago

Evaluate -2 x 2y , if x = -3 and y = -1. -12 -18 18 12

Mathematics

1 answer:

Rina8888 [55]3 years ago

8 0

Answer:

-559872

Without adding in the additonal Numbers

-4xy

Step-by-step explanation:

Im most likely way off so please, i am Not going to guarantee that this answer is correct

(This is the first time ive been unsure of my Answer so please take my warning into consideration)

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julia-pushkina [17]

Answer:

an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).

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3 years ago

Urgent please help quick!!!

Radda [10]

Answer:

$x=-1\\y=-1$

Step-by-step explanation:

$5x+5y=-10\\3x-7y=4$

Let's solve the first equation for either x or y. I'll do it for x.

$5x+5y=-10$

Begin by subtracting 5y.

$5x=-5y-10$

Now divide by 5.

$x=\frac{-5y}{5}-\frac{10}{5}$

Simplify:

$x=-y-2$

Now substitute x in the second equation for this value.

$3x-7y=4\\3(-y-2)-7y=4$

Distribute;

$-3y-6-7y=4$

Add 6

$-3y-7y=4+6$

Combine like terms;

$-10y=10$

Divide by -10.

$y=\frac{10}{-10}\\ y=-1$

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Take this value of y and replace it in the first equation to find the value of x.

$5x+5y=-10\\5x+5(-1)=-10\\5x-5=-10\\5x=-10+5\\5x=-5\\x=\frac{-5}{5}\\ x=-1$

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3 years ago

The next number in the series of intervals of 38, 36,30,28,22,is=

Ivenika [448]

There is a pattern of -2, -6, so the next number is 20.

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3 years ago

PLS , help me asap :(( , im so frustrated , idk how to do these :c

kolezko [41]

Answer:

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Step-by-step explanation:

In analytic geometry, using the common convention that the horizontal axis represents a variable x and the vertical axis represents a variable y, a y-intercept or vertical intercept is a point where the graph of a function or relation intersects the y-axis of the coordinate system. As such, these points satisfy x = 0.

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shtirl [24]

Answer:

100

Step-by-step explanation:

4 x (2 + 3) $^{2}$

for this equation u have to use PEMDAS so u have to solve the parenthesis first which is 5 then exponets which is $5^{2}$ which is 25 and 24 x 4 gives you 100

hope this helps, if im wrong sorry

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3 years ago

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